CN107815676A - It is a kind of continuously quickly to handle multi-functional trivalent chromium passivator of belt steel surface and its preparation method and application - Google Patents
It is a kind of continuously quickly to handle multi-functional trivalent chromium passivator of belt steel surface and its preparation method and application Download PDFInfo
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- CN107815676A CN107815676A CN201711189707.1A CN201711189707A CN107815676A CN 107815676 A CN107815676 A CN 107815676A CN 201711189707 A CN201711189707 A CN 201711189707A CN 107815676 A CN107815676 A CN 107815676A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C23C22/36—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/46—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates
- C23C22/47—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates containing also phosphates
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
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- Chemical Treatment Of Metals (AREA)
Abstract
The present invention relates to a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface and its preparation method and application.Trivalent chromium passivator provided by the invention is made up of trivalent chromium compound, liquid aerosil or silane coupler, complexing agent, inorganic acid, coalescents, wax emulsion, wetting agent and water.Trivalent chromium passivator provided by the present invention has high corrosion-resistant, humidity resistance, water resistance, heat-resisting quantity, lubricity, alkali resistance, solvent resistance, coating and has certain self-reparing capability, and the nano-scale oxide conversion film of even compact can be continuously rapidly formed in surface of steel plate.The passivator film formation time of the present invention is short, suitable for the continuous coating line of roll coater of strip high-speed production.
Description
Technical field
The present invention relates to one kind to be used for steel mill's high-speed and continuous galvanization production line, and the more of passivating film are quickly formed in surface of steel plate
Feature trivalent chromium passivator and its preparation method and application.
Background technology
As China's economic strength increases, its auto industry, household electric appliances and building trade etc. are continuous to steel plate demand
Increase, to board quality, environmental requirement is also constantly increased.Application amount of the zinc-plated sheet material in these industries is all into multiplication every year
It is long, antiseptic and rustproof requirement to galvanized sheet also more and more higher.Due to zinc with reduction potential it is low, cheap the advantages that be often used as
The protective layer of steel, but be easily corroded because its chemical property is active, therefore usually require to be passivated zinc coat
Processing.The passivating film that Cr VI passivator is simple to operate, cost is cheap, control is easy and resulting has corrosion resisting property good, outer
See beautiful, and have the advantages that self-reparing capability, still, Cr VI is a kind of extremely toxic substance, has carcinogenic teratogenesis, it is impossible to full
Requirement of the sufficient European Union RoHS standards to heavy metals such as cadmium, mercury, lead, Cr VIs.Trivalent chromium passivation has in many aspects and sexavalence
The similar property of chromium passivating, toxicity but only have 1 the percent of Cr VI.Substantial amounts of trivalent chromium passivator is applied to steel at this stage
The zinc-plated tinuous production of factory, passivating film is quickly and evenly formed coated in surface of steel plate by roll coater, but function is relatively simple,
Only antiseptic and rustproof function.And present client is for Functional Requirement is more and more, performance requirement more and more higher, cost requirement
It is more and more lower, and the development of multifunctional high-performance trivalent chromium passivator, and the requirement with market development.
The content of the invention
It is an object of the invention to provide a kind of chromic salt, liquid aerosil or silane coupler, inorganic acid, wax
A kind of trivalent chromium passivator with certain self-reparing capability that the reasonable preparation of emulsion and additive is obtained, can with the medicament
Continuously to rapidly process steel plate, the conversion film even compact that is formed has excellent corrosion resistance and lubricity, and lead to
Cross and add some raw material components, can make the passivating film that there is certain self-reparing capability, substantially increase the salt fog of passivating film
Energy, humidity resistance, water resistance, coating, heat-resisting quantity, the performance such as hydrophobic function of solvent resistance and surface of steel plate, the trivalent
Chromium passivating agent product stability is good, and long shelf-life is low odor profiles, and execute-in-place is convenient, meets European Union's RoHS standards requirement.
The technical solution adopted by the present invention is：A kind of multi-functional trivalent chromium passivation that continuously can quickly handle belt steel surface
Agent, it is made up of following raw materials by weight：
Preferably, described trivalent chromium compound be chromium sulfate, chromic nitrate, chromium phosphate or one kind in biphosphate chromium or
Two kinds.
Preferably, described silane coupler is amino silicane coupling agent and/or epoxy silane coupling.
Preferably, described complexing agent is one kind in citric acid, acetic acid, lactic acid or oxalic acid or two kinds.
Preferably, described inorganic acid be phosphoric acid, nitric acid or hydrofluoric acid in one kind, two kinds or three kinds.
Preferably, described coalescents are cobalt nitrate, sodium nitrate, potassium nitrate, ammonium fluoride, ammonium acid fluoride, biphosphate
Two kinds, three kinds or four kinds in sodium or ammonium dihydrogen phosphate.
Preferably, described wax emulsion is cationic-nonionic oxidated polyethylene wax.
Preferably, described wetting agent is AEO.
A kind of preparation method for the multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface, including following step
Suddenly：Stocked up by above-mentioned proportioning, Yu Shuizhong, under agitation, sequentially add complexing agent stirring 10-20min；Add inorganic acid stirring
15-30min；Liquid aerosil and/or silane coupler stirring 10-60min are added, makes liquid aerosil
And/or silane coupler complete hydrolysis；Add coalescents stirring 20-40min；Add wax emulsion stirring 3-7min；Add three
Valency chromium compound stirs 10-20min；Add wetting agent stirring 5-10min.
A kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface forms passivating film in surface of steel plate
In application.Method is as follows：Above-mentioned multi-functional trivalent chromium passivator is continuously rapidly coated on galvanized sheet with roll coater
On lower surface, second time 2-5 is applied, then in 60-80 DEG C, dries the 10-15 seconds, thin layer passivation is formed in surface of steel plate
Film.
The beneficial effects of the invention are as follows：
1st, passivator of the invention, can be by the way that continuously rapidly roller coat processing makes passivation of metal surfaces, at shorter place
The passivating film for forming even compact, excellent performance in the time by relatively low baking temperature is managed, valency is applied with very important
Value.
2nd, passivator of the invention, by adding some raw material components so that have in the passivating film that surface of steel plate is formed
Certain self-reparing capability, excellent corrosion resistance, lubricity, humidity resistance, water resistance, coating, heat-resisting quantity, solvent resistant
The performances such as the hydrophobic function of property and surface of steel plate.
3rd, passivator of the invention, product stability is good, long shelf-life, low odor profiles, and execute-in-place is convenient.
4th, passivator of the invention, in strip continuous production, particularly on steel mill's high-speed and continuous galvanization production line, is adopted
Passivating film is quickly formed in surface of steel plate with roll coater painting method, makes surface of steel plate that there is high corrosion-resistant and lubricity, is improved
Lubricity and processability of the steel plate in Pressing Deformation, the process that electrostatic spraying rolling oil can be omitted, so as to reduce cost.
5th, passivator of the invention, have high corrosion-resistant, humidity resistance, water resistance, heat-resisting quantity, lubricity, alkali resistance,
Solvent resistance, coating simultaneously have certain self-reparing capability, and the nanometer of even compact can be continuously rapidly formed in surface of steel plate
Level oxide conversion film.After adding liquid aerosil, hydrophobicity is provided with surface of steel plate；Add wax emulsion
Afterwards, lubricity and processability of the steel plate in Pressing Deformation can be improved, solves punching press post-passivation film nigrescence phenomenon, and omit
The process of electrostatic spraying rolling oil, so as to reduce cost.
6th, passivator of the invention, film formation time is short, suitable for the continuous coating line of roll coater of strip high-speed production.
Embodiment
Embodiment 1
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, lactic acid stirring 10min is sequentially added；Add phosphoric acid stirring
10min；Add hydrofluoric acid stirring 10min；Add nitric acid stirring 10min；Adding amino silicane coupling agent stirring 30min makes silane
Coupling agent complete hydrolysis；Add liquid aerosil stirring 10min；Add ammonium fluoride stirring 10min；Cobalt nitrate is added to stir
Mix 10min；Add cationic-nonionic oxidated polyethylene wax stirring 5min；Add chromic nitrate stirring 10min；Add aliphatic alcohol polyethenoxy
Ether stirs 7min, stirs, produces target product.
Embodiment 2
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, acetic acid stirring 10min is sequentially added；Add citric acid stirring
10min；Add phosphoric acid stirring 10min；Add nitric acid stirring 10min；Adding epoxy silane coupling stirring 30min makes silane
Coupling agent complete hydrolysis；Add liquid aerosil stirring 10min；Add potassium nitrate stirring 10min；Add biphosphate
Sodium stirs 10min；Add ammonium fluoride stirring 10min；Add cobalt nitrate stirring 10min；Cationic-nonionic oxidated polyethylene wax is added to stir
Mix 5min；Add chromium sulfate stirring 10min；Add chromium phosphate stirring 10min；AEO stirring 7min is added,
Stir, produce target product.
Embodiment 3
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, acetic acid stirring 10min is sequentially added；Add oxalic acid stirring
10min；Add nitric acid stirring 10min；Add hydrofluoric acid stirring 10min；Amino silicane coupling agent stirring 30min is added, is added
Epoxy silane coupling stirring 30min makes silane complete hydrolysis；Add sodium nitrate stirring 10min；Add cobalt nitrate stirring
10min；Add cationic-nonionic oxidated polyethylene wax stirring 5min；Add biphosphate chromium stirring 10min；Add fatty alcohol polyoxy second
Alkene ether stirs 7min, stirs, produces target product.
Embodiment 4
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, acetic acid stirring 10min is sequentially added；Add lactic acid stirring
10min；Add phosphoric acid stirring 10min；Add nitric acid stirring 10min；Add hydrofluoric acid stirring 10min；It is even to add amino silane
Connection agent stirring 30min makes silane coupler complete hydrolysis；Add cobalt nitrate stirring 10min；Add sodium dihydrogen phosphate stirring
10min；Add ammonium acid fluoride stirring 10min；Add cationic-nonionic oxidated polyethylene wax stirring 5min；Add chromic nitrate stirring
10min；Add biphosphate chromium stirring 10min；AEO 7min is added, stirs, produces target product.
Embodiment 5
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, lactic acid stirring 10min is sequentially added；Add oxalic acid stirring
10min；Add phosphoric acid stirring 10min；Add hydrofluoric acid stirring 10min；Add liquid aerosil stirring 10min；Add
Enter sodium dihydrogen phosphate stirring 10min；Add ammonium fluoride stirring 10min；Add cationic-nonionic oxidated polyethylene wax stirring 5min；Add
Chromium sulfate stirs 10min；Add chromic nitrate stirring 10min；AEO 7min is added, stirs, produces mesh
Mark product.
Embodiment 6
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, citric acid stirring 10min is sequentially added；Add phosphoric acid stirring
10min；Add nitric acid stirring 10min；Add amino silicane coupling agent stirring 30min；Add the stirring of liquid aerosil
10min；Add sodium dihydrogen phosphate stirring 10min；Add potassium nitrate stirring 10min；Add cationic-nonionic oxidated polyethylene wax stirring
5min；Add chromium phosphate stirring 10min；AEO stirring 7min is added, stirs, produces target product.
Embodiment 7
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, acetic acid stirring 10min is sequentially added；Add phosphoric acid stirring
10min；Add nitric acid stirring 10min；Add hydrofluoric acid stirring 10min；Add epoxy silane coupling stirring 30min；Add
Enter ammonium acid fluoride stirring 10min；Add ammonium dihydrogen phosphate stirring 10min；Add cationic-nonionic oxidated polyethylene wax stirring 5min；Add
Enter biphosphate chromium stirring 10min；Add chromium sulfate stirring 10min；AEO 7min is added, is stirred,
Produce target product.
Embodiment 8
(1) composition of the multi-functional trivalent chromium passivator of belt steel surface continuously can quickly be handled
(2) preparation method
In pure water, under 500r/min moderate-speed mixers, acetic acid stirring 10min is sequentially added；Add lactic acid stirring
10min；Add phosphoric acid stirring 10min；Add nitric acid stirring 10min；Add hydrofluoric acid stirring 10min；It is even to add amino silane
Join agent stirring 30min；Add epoxy silane coupling stirring 30min complete hydrolysis；Add sodium dihydrogen phosphate stirring 10min；
Add cobalt nitrate stirring 10min；Add cationic-nonionic oxidated polyethylene wax stirring 5min；Add chromic nitrate stirring 10min；Add phosphorus
Sour chromium stirs 10min；AEO stirring 7min is added, stirs, produces target product.
Embodiment 9 continuously can quickly handle the application of the multi-functional trivalent chromium passivator of belt steel surface
Method is as follows：By the multi-functional trivalent chromium passivator obtained by 1-8 of the embodiment of the present invention, coated using roll coater
Method quickly forms passivating film on galvanized steel surface.Concretely comprise the following steps：Galvanized steel plain sheet is subjected to degreasing, washing, drying and processing
Afterwards, medicament prepared by embodiment 1-8 is coated experiment with roll coater, applies second time 2-5, in 60-80 DEG C, dry 10-
15 seconds, thin layer passivating film is formed in galvanized steel sheet surface.
As a result：Resistance to wet hot property ⊿ E the ＜ 2.8, (professional standards of Nai Gaowen ⊿ E ＜ 1.2：Resistance to wet hot ⊿ E ＜ 5, Nai Gaowen ⊿
E ＜ 3)；Preferable water resistance, alkali resistance, the equal (professional standards of ＜ 0.8 of solvent resistance , ⊿ E：The Xing of Nai Shui ⊿ E ＜ 3, the Xing of Nai Jian ⊿ E
＜ 3, the Ji of Nai Rong ⊿ E ＜ 3), and excellent coating.By being greatly improved after adding nano silicon and silane coupler
Corrosion resistance, plane neutral salt spray test can reach more than the 240h, (professional standards of corroded area ＜ 5%：72h neutral salt spray,
Plate face corroded area ＜ 5%), more than 200h can be reached by drawing fork salt spray test, there is preferable self-reparing capability.By add it is non-from
Sub- OPE, surface of steel plate have preferable lubricity, (the common trivalent chromium passivation plates of surface dynamic friction coefficient ＜ 0.15
Surface does not have lubricity, the equal ＞ 0.4 of the coefficient of kinetic friction), when steel plate punched deforms can protective substrate well, solve punching
Post-passivation film nigrescence phenomenon is pressed, while saves the technique and expense of electrostatic spraying rolling oil.
Claims (10)
1. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface, it is characterised in that by following raw material
It is made by weight percentage：
2. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described trivalent chromium compound is chromium sulfate, chromic nitrate, chromium phosphate or one kind in biphosphate chromium or two kinds.
3. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described silane coupler is amino silicane coupling agent and/or epoxy silane coupling.
4. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described complexing agent is one kind or two kinds in citric acid, acetic acid, lactic acid or oxalic acid.
5. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described inorganic acid is one kind in phosphoric acid, nitric acid or hydrofluoric acid, two kinds or three kinds.
6. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described coalescents are cobalt nitrate, sodium nitrate, potassium nitrate, ammonium fluoride, ammonium acid fluoride, sodium dihydrogen phosphate or phosphorus
Two kinds, three kinds or four kinds in acid dihydride ammonium.
7. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described wax emulsion is cationic-nonionic oxidated polyethylene wax.
8. a kind of multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface according to claim 1, its
It is characterised by, described wetting agent is AEO.
A kind of 9. preparation method for the multi-functional trivalent chromium passivator that continuously can quickly handle belt steel surface, it is characterised in that
Method is as follows：Proportioning stock as described in claim 1, Yu Shuizhong, under agitation, sequentially add complexing agent stirring 10-
20min；Add inorganic acid stirring 15-30min；Liquid aerosil and/or silane coupler stirring 10-60min are added,
Make liquid aerosil and/or silane coupler complete hydrolysis；Add coalescents stirring 20-40min；Add wax emulsion
Stir 3-7min；Add trivalent chromium compound stirring 10-20min；Add wetting agent stirring 5-10min.
10. a kind of multi-functional trivalent chromium passivator of belt steel surface that continuously can quickly handle described in claim 1 is in steel plate
The application that surface is formed in passivating film.
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| CN201711189707.1A CN107815676B (en) | 2017-11-24 | 2017-11-24 | Multifunctional trivalent chromium passivator capable of continuously and rapidly treating surface of strip steel and preparation method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823559A (en) * | 2018-08-06 | 2018-11-16 | 广州和力表面处理技术有限公司 | A kind of cover packaging material pre-treatment trivalent chromium passivator and preparation method thereof |
| CN112301338A (en) * | 2020-07-02 | 2021-02-02 | 上海兴赛尔表面材料有限公司 | Medium-low temperature fast curing trivalent chromium passivation solution and manufacturing and using method thereof |
| CN112930419A (en) * | 2018-10-24 | 2021-06-08 | Posco公司 | Surface treatment solution composition containing trivalent chromium and inorganic compound, and method for producing hot-dip galvanized steel sheet surface-treated with the same |
| CN115198263A (en) * | 2022-06-28 | 2022-10-18 | 马鞍山钢铁股份有限公司 | Method for eliminating surface passivation defect of strip steel |
| CN118186384A (en) * | 2024-03-15 | 2024-06-14 | 上海帕卡濑精有限公司 | Trivalent chromium self-lubricating passivating agent for zinc-aluminum-magnesium coating and preparation method thereof |
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| CN112930419B (en) * | 2018-10-24 | 2023-06-09 | 浦项股份有限公司 | Surface treatment solution composition and method for producing hot dip galvanized steel sheet surface-treated with the same |
| CN112301338A (en) * | 2020-07-02 | 2021-02-02 | 上海兴赛尔表面材料有限公司 | Medium-low temperature fast curing trivalent chromium passivation solution and manufacturing and using method thereof |
| CN115198263A (en) * | 2022-06-28 | 2022-10-18 | 马鞍山钢铁股份有限公司 | Method for eliminating surface passivation defect of strip steel |
| CN118186384A (en) * | 2024-03-15 | 2024-06-14 | 上海帕卡濑精有限公司 | Trivalent chromium self-lubricating passivating agent for zinc-aluminum-magnesium coating and preparation method thereof |
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